Working-barrel for oil-wells.



W. H. WALKER & W. H. MODEVITT- WORKING BARREL FOR OIL WELLS.

APPLICATION FILED JUNE 7, 1909.

Patented Apr. 12, 1910.

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WORKING-BARREL ron OIL-WELLS.

WILLIAM H. WALK ER AND WILLIAM H. MCDEV'ITT, OF FENELTON, PENNSYLVANIA.

To'all whom it may concern:

Be it known that we, WILLIAM H. WALKER and WILLIAM H. MGDEVITI, citizens of the United States of America, residing at Fenelton, in the county of Butler and State ofPennsylvania, have invented certain new and useful Im rovements in WorkingzBarrels for Oil-Te 1s, of which the following is a specification, reference being had therein to the aegcompanying drawing.

This inventiomrelates to working barrels, and the invention hasfor its primary object to provide simple and effective means for simultaneously raising oil in the casing of a well and agitating the walls of-the Well at the lower end thereof, to increase the flow of oil and prevent the formation of paraffin and I other matter.

. detail and then claimed, and reference will spherical hollow head 5 connected to the now be had to the drawing forming part of this specification, wherein,

Figure 1 is-a vertical sectional view of a barrel constructed in accordance with our invention, Fig. 2 is a horizontal sectional View taken on the line W-W of Fig. l, and Fig. 3 is a similar view taken on the line X-X of Fig. 1.

The working barrel consists of two cylindrical sections 1 and 2, having the ends thereof exteriorlyscrew threaded, whereby the sections can be connected by a couplingpiece 3, thecasing 4 connected to the upper end of the section 2, and a perforated semilower end of the section 1. The section 2 is formed with-a longitudinal bore f the same length as said section andthe section 1 is*f0rmed with a longitudinal bore 8 of less length than the section 1, the bore 6 terminating at a point removed from the lower end of the section 1.. The

n per portion of the bore 8 is of greater diameter than the lower portion. Said por tion "of greater diameter is indicated by the reference character 7, and which at'its lower end provides a seat for a plug 14 which is formed with a stuffingbox 15, the latter exis perforated, at 18.

Specification of Letters Patent. Patented Apr. 12, 1910.

Application filed June 7, 1909. Serial No. 500,653..

upper end communicates with the lower end, 0

a by-pass 10 formed in the said section].

- The upper end of the by-pass 10' opens into the enlarged portion 7 of the bore 8 and above the lug 14. 'The bore 6 registers withthe en arged portion 7 of the bore 8.

Threaded in the lower end of the opening 9 is a valve seat 11 having a ca e-12 for a spherical ball or valve 13 adapted to seat by gravity.

Extending through the plug 1 1 and stuffing box 15 1s a movable tubular pistonrod 16, having the lower end thereof provided with a'piston head 17. The upper. end of the piston rod 16 extends into the bore 6 and Connected to the upper end of the rod 16 as at 19 is a valve seat 20, serving functionally as a piston head within the bore 6. The valve seat 20 is provided with a cage 21 for a spherical ball or valve 22, and said cage is connected, as at 23,

to a pump rod 24.

The section '1. at its lower end is formed with a plurality of radially-disposed openings 25 which at their inner ends communicate with the lower portion of the bore 8.

In o )eration,-:iii upstroke of the pum rod 24 causes the valve 13 to open, and Oll to enter the opening 9, by-path 10, and the enlarged end of the bore. 8 above the plug 14. Oil also enters the openings 25 into the lower end of thebore 8.. A downstrolte of the pump rod 2 1 causes the piston head '17 to eject theoil within the lower part of the bore 8 and causes the valve 15 to close. ()il within the enlarged end 7 of the bore 8 is then forced into the tubular piston rod 16, raising the valve 22 and entering the casing 4- or that part of the bore (3 above the valve seat 20. Another upstroke of the trated a preferred embodiment of the lu volition, we would have it understood that thestructural cleni'ents thereoiran be varied or ehanged as to the size, proportion and manner of asseiiiblagc without departing from the spirit of the invention.

1 Having now' described our what we claim as new, is

1. A working barrel for oil wells comprising two sections, the up er of which is 5 provided with a bore of a en h equal to 'the length of its section and t e lower of which is provided with a-bore of less length than the length of its section, the bore of the lower section having its upper ortion enlarged and registering witi t e. bore of the upper section, means for connecting the two' sections together, and said lower section having an opening at the 'bottom thereof for the entrance'of the oil, said lower secinvention,

;tion provided with a by-pass communicat ing at its lower end with said opening and at its upper end opening into the enlarged portion of the bore of the lower section,- for 'conductingthe oil from the opening to the enlarged portion of the bore, a plug mounted inthe enlarged port on; of the lower section, a tubular piston rodextending through said plug. and having the upper 'portion thereof perforated, a piston carried by the I lower end of said rod, a pistonhead carried by the upper end of the rod and provided ,with a valve mechanism, a gravity'valvular deV'ice mounted in said opening :at the bottoin of the lower section, said lowersection provided with a series of openings oomfmunicating with the lower portion of the bore in 'the section whereby the oil in the lower portion of the bore in "said section will be ejected therefrom a ainst the walls of the .well at thetlower en thereof to'increase the flow of oil and prevent the formation of paraflin and other matter, and a pump rod connected with the valve mechanism carried by the iston head.

2. A wor 'ing barrel for oil wells coxnd prising an upper and a lower section suitably connected together, each of said sections provided with a bore, said bores registering with each other, a plug in the bore of the lower section, said lower section at its lower end formed with an opening for I the entrance of the oil, a valvular device mounted in said opening, said lower section having a by pass for establishing oomthe oil in the lower portion of said bore w 6 be ejected therefrom on the down stroke of the piston against the walls of the well to prevent the formation of parafiin and to increasethe flow of oil.

In testimony whereof we ailix our signatures in the presence of two witnesses. i

WILLIAM WALKER. VYILLIAM HrMoDEVITT. Witnesses: J. L. DIPNER, Jenn YouNe. 

